Mesco Replacement Kit for Armstrong 4280/4380 (1.250″)

Upgrade your Armstrong Model 4280 or 4380 "S" pump with this high-quality Mesco Replacement Kit, designed to restore peak performance at an affordable price. This kit includes essential components like a mechanical seal, shaft sleeve, spacer sleeve, and case gaskets, all engineered to meet or exceed original equipment manufacturer (OEM) specifications.

Built for durability and reliability, this kit ensures a seamless replacement process, reducing downtime and maintenance costs. Whether you're performing routine maintenance or addressing wear-related issues, Mesco’s precision-engineered parts deliver OEM-quality performance without the premium price tag. Stocked and ready to ship, this kit is the smart choice for professionals who demand efficiency and value.